Elevator.



No. 775,234. PATENTED NOV. 15, 1904. J. J. CARR.

ELEVATOR.

APPLICATION FILED JAN. 14, 1904.

no MODEL. QBHEETS-BHEET 1.

a I k WITNESSES: K INVENTOI? 6? MA AYTOHNEYS No. 775,234. PATENTED NOV.15, 1904.-

J. J. CARR.

ELEVATOR.

APPLIOATION FILED JAN. 14, 1904.

no MODEL. 2 snnmssnnm a WITNESSES. INVENTOH %'/i W- ATTORNEYS UNITEDSTATES JOHN JOSEPH CARR, OF NElV YORK, N. Y., ASSIUNOR OF ONIC-l-IALF TOPatented November 15, 190' PATENT @rrrca.

CYRUS EVERS, DANIEL J. LYNCH, AN l) DANIEL MORAE, OF BROOKLYN,

NFJY YORK.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 775,234, dated November15, 1904.

Application filed January 14, 1904. Serial No. 188,991- No model.)

To (1/7 whom it m/ny concern:

Be it known that 1, JOHN J osEPH CARR, a citizen of the United States,and a resident of the city of New York, borough of Brooklyn, in thecounty of kings and State of New York, have invented a new and ImprovedElevator, of which the following is afull, clear, and exact description.

This invention relates to a novel form of elevator which I have designedparticularly for use as an amusement apparatus, but which is useful inother connections.

The apparatus as here illustrated embodies, briefly stated, an openspiral inclosure or Archimedean screw having an axial shaft revolublymounted on the desired incline and bearing in addition onlongitudinally-extending supports at each end of the lower portion ofthe inclosure or Archimedean screw, so as effectively to support theinclosure. In said inclosure a car is arranged to be raised and lowered,if desired, by the operation of the screw, and means are provided forrevolubly driving the Archimedean screw or spiral inclosure.

The invention further resides in certain novel details of constructionconcerned with the car and screw and with the manner of mounting anddriving the latter.

This specification is an exact description of one example of myinvention in which it is embodied as an amusement apparatus and isillustrated in connection with my novel passenger-drop forming thesubject of my copending application filed of even date herewith, SerialNo. 188,992, and the claims. are exact definitions of the scope of theinvention.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a plan view of the elevator. Fig. 2 is an enlarged detailview showing the rollers forming the bed in which the screw turns. Fig.3 is a cross-section of the screw, taken at the bottom of one of itsconvolutions and showing the car in place therein; and Fig. & is a sideelevation of the complete apparatus.

A suitable staging or support is provided to sustain the parallelstringers 11, which are arranged at an inclination, as shown, and carryat their inner sides rollers 12, which are made up of sections formingtwo continuous rollers extending, essentially, throughout the length ofthe stringers 11. On said rollers 12 bear the convolutions of a spiralinclosure or r\rchimedean screw 11, which is open throughout, asindicated, and suitably mounted on an axial shaft 15. The details of thestructure of the screw 11 are not material to my invention, and anyapproved practice may be resorted to to secure a strong, convenient, andgraceful structure. The shaft 15 is mounted at its lower end in astep-bearing 16 and at its upper end in a bearing .17, sustained on atower 18, which carries the before-referred -to passenger-drop.Consequently the screw 11 is suitably journaled or mounted by its axialshaft 15 and the rollers 12. The screw 11 may be driven in any desiredmanner. I have here shown a sprocket-wheel 19 encircling the screw andcarrying a chain 20, running to a sprocket-wheel 21 on a shaft 22,suitably mounted in the staging l land connected with a source ofpower---for instance, an engine 23.

2a indicates the cars, which may be of any number desired and which arearranged to fit within the screw, the cars having rollers running ontrack-surfaces within the screw, so as to reduce the friction betweenthe parts. Interiorly the cars may be litted as desired-for instance,with seats 26, a floor 2.7, and other conveniences for the passengers.It is clear that by placing a car within the lower convolution of thescrew and rotating the screw the car will be moved up through the screwto its upper extremity, and in this manner the passengers are elevated.The tower 18 supports a suitable landing 2? for the passengers, and thislanding may also serve .to facilitate the transfer of the cars from thescrew to a descending track 29, along which the cars are returned to thebottom of the screw.

indicates a chain or other means running along the descending track 29to control the descent of the cars. This chain may be connected with anysuitable means for retarding its movement, so as to prevent the carsfrom descending too rapidly.

31 may be taken to represent a house or shelter through which thepassengers may pass to the cars, and as the cars run down the track 29to the level of the house 31 they may be transferred manually ormechanically back to the screw and the lifting operation repeated.

In the practical operation of the apparatus as an amusement device thecars Will be successively placed in the screw and elevated thereby, asexplained. The passengers upon landing on the platform 28 may bereturned to the ground by any desired means. I prefer to employ theimproved passenger-drop above referred to, and in such case thepassengers pass from the platform 28 to the car of the drop and arethereby returned to the ground. The cars as soon as they reach theplatform 28 are returned on the descending track 29 and again engagewith the screw. The operation of the screw should be kept upcontinuously, and the cars accordingly will move continuously up thescrew and down the descending track. This enables a large number ofpassengers to be handled continuously and produces, consequently, anamusement apparatus of large capacity.

Various changes in the form, proportions,

and minor details of my invention may be resorted to at will withoutdeparting from the spirit and scope thereof. Hence 1 consider myselfentitled to all such variations as may lie Within the intent of myclaims.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination of a revolubly-mounted spiralinclosure, means for rotating the same, and a car movably mounted in theinclosure and having parts bearing against the bottom and side wallsthereof.

2. The combination of a spiral inclosure the convolutions of which arespaced from each other forming an open structure, an axial shaft passingcentrally through said inclosure and fastened thereto, means forrevolubly mounting the shaft, supporting means extending longitudinallyalong the under portion of the spiral inclosure at each side thereof,means for revolubly driving the spiral inclosure, and a car movable inthe inclosure. I

3. The combination of a spiral inclosure the convolutions of which arespaced from each other forming an open structure, an axial shaft passingcentrally through said inclosure and fastened thereto, means forrevolubly mounting the shaft, supporting means extending longitudinallyalong the under portion of the spiral inclosure at each side thereof,means for revolubly driving the spiral inclosure, and a car movable inthe inclosure, said means for driving the spiral inclosure comprising anannular gear member encircling the spiral inclosure and fastenedthereto, a drive-shaft, a gear member attached thereto, and beltconnecting the gear members.

4:. The combination of a framing having inclined members, rollersextending parallel to each other and mounted on the inclined members ofthe framing, a spiral inclosure the convolutions of which are spacedapart to produce an open structure, said inclosure being mounted on saidrollers, a car movable in the inclosure, a shaft passing axially throughsaid inclosure and fastened thereto, means for revolubly mounting theshaft, and means for revolubly driving the said inclosure.

5. The combination of a spiral inclosure, a car movable therein, a shaftextending through the longitudinal axis of the spiral inclosure andfastened to said inclosure, means for revolubly mounting the shaft, andmeans for revolubly driving the spiral inclosure, the convolutions ofthe spiral inclosure being spaced apart to produce an open structure.

6. The combination ofaspiral inclosure, the convolutions of which arespaced from each other forming an open structure, means for revolublymounting the spiral inclosure, means for revolubly driving the spiralinclosure, and a car located within the spiral inclosure and adapted tomove through the same.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN JOSEPH CARR.

WVitnesses:

GYRUs EVERS, DANIEL MoRAE.

